Possibility to disable notification when sharing to user or group

drive/share.go

@@ -2,6 +2,7 @@ package drive
 
 import (
 	"fmt"
+	"strings"
 	"google.golang.org/api/drive/v3"
 	"io"
 	"text/tabwriter"
@@ -15,18 +16,28 @@ type ShareArgs struct {
 	Email        string
 	Domain       string
 	Discoverable bool
+	DisableNotification bool
 }
 
 func (self *Drive) Share(args ShareArgs) error {
 	permission := &drive.Permission{
 		AllowFileDiscovery: args.Discoverable,
 		Role:               args.Role,
-		Type:               args.Type,
+		Type:               strings.ToLower(args.Type),
 		EmailAddress:       args.Email,
 		Domain:             args.Domain,
 	}
 
-	_, err := self.service.Permissions.Create(args.FileId, permission).Do()
+	call := self.service.Permissions.Create(args.FileId, permission)
+
+	if permission.Type == "user" || permission.Type == "group" {
+		if args.DisableNotification {
+			call = call.SendNotificationEmail(false);
+		}
+	}
+
+	_, err := call.Do()
+
 	if err != nil {
 		return fmt.Errorf("Failed to share file: %s", err)
 	}

gdrive.go

@@ -435,6 +435,12 @@ func main() {
 						Description: "Delete all sharing permissions (owner roles will be skipped)",
 						OmitValue:   true,
 					},
+					cli.BoolFlag{
+						Name:        "disableNotification",
+						Patterns:    []string{"--no-notification"},
+						Description: "Disable notification e-mail when sharing to user or group. Cannot be disabled for ownership transfer.",
+						OmitValue:   true,
+					},
 				),
 			},
 		},

handlers_drive.go

@@ -250,6 +250,7 @@ func shareHandler(ctx cli.Context) {
 		Email:        args.String("email"),
 		Domain:       args.String("domain"),
 		Discoverable: args.Bool("discoverable"),
+		DisableNotification: args.Bool("disableNotification"),
 	})
 	checkErr(err)
 }